Gervase Markham's article in the Times Online: Free software? You can't just give it away provides an amusing anecdote about an extended conversation between him (representing the Mozilla Foundation) and a UK Trading Standards officer who was investigating a UK business selling Firefox CDs.
Unfortunately, this was not well received. Her reply was incredulous:
"I can't believe that your company would allow people to make money from something that you allow people to have free access to. Is this really the case?" she asked.
"If Mozilla permit the sale of copied versions of its software, it makes it virtually impossible for us, from a practical point of view, to enforce UK anti-piracy legislation, as it is difficult for us to give general advice to businesses over what is/is not permitted."